Maxillary second premolars

Question 1

Difference between this tooth and the maxillary first premolar

Answer 1

Less common and less prominent developmental grooves, leading to a less prominent buccal ridge and line angles and overall more rounded anatomy.

Question 2

Proportional to the maxillary first premolar what is the size of the lingual cusp, smaller or larger?

Answer 2

Larger

Question 3

The buccal and lingual cusps are almost the same size. T/F

Answer 3

True

Question 4

The mesial marginal groove and mesial concavity are prominent. T/F

Answer 4

False

Question 5

In what direction is the lingual cusp apex located?

Answer 5

Mesially

Question 6

The buccal cusp ridge was straight on the maxillary first premolar, what is its configuration on this tooth?

Answer 6

More rounded than the maxillary first premolar

Question 7

Is there central groove shorter or longer than the maxillary first premolar?

Answer 7

Shorter, as a result the pits are closer and sometimes are so close that it results in one single pit.

Question 8

Are there supplemental grooves on this tooth? If so, what type of appearance do the give on the occlusal surface?

Answer 8

Yes and they give wrinkled appearence

Question 9

Mesial and distal HOC

Answer 9

Between middle and occlusal thirds (distal HOC closer to cervical line than mesial HOC)

Question 10

Buccal HOC

Answer 10

Between middle and cervical third

Question 11

Lingual HOC

Answer 11

Middle third